Segment Information - Financial Information by Segment (Details) $ in Thousands		12 Months Ended
	Oct. 01, 2024 USD ($)	Dec. 31, 2024 USD ($) segment	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Financial information by segment
Net revenue		$ 10,700,883	$ 10,333,967	$ 9,955,475
Cost of goods sold		8,481,728	8,208,806	8,129,124
Distribution, selling and administrative expenses		1,909,791	1,813,559	1,554,821
Other operating expense (income), net		13,316	6,930	(5,252)
Acquisition-related charges and intangible amortization		(86,543)	(101,037)	(126,972)
Exit and realignment charges, net		(110,162)	(99,127)	(6,897)
Goodwill impairment charge	$ 0	(307,112)	0	0
Operating (loss) income		(207,769)	104,508	142,913
Capital expenditures		228,162		166,582
Share-based compensation		26,836	23,218	20,993
Other share-based compensation		1,705	2,276	492
Depreciation and amortization		264,775	287,377	228,667
Intangible amortization		64,943	83,522	78,847
Other depreciation and amortization		$ 12,965	3,516
Number of reportable segments | segment		2
Products & Healthcare Services
Financial information by segment
Capital expenditures		$ 50,050		49,824
Share-based compensation		19,417	15,078	19,681
Depreciation and amortization		45,835	47,756	51,784
Patient Direct
Financial information by segment
Capital expenditures		178,112		116,758
Share-based compensation		5,714	5,864	820
Depreciation and amortization		141,032	152,583	98,036
Operating Segments
Financial information by segment
Net revenue		10,700,883	10,333,967	9,955,475
Operating (loss) income		313,167	304,672	369,057
Operating Segments | Products & Healthcare Services
Financial information by segment
Net revenue		8,020,771	7,781,395	7,898,397
Cost of goods sold		7,081,997	6,873,254	6,925,929
Distribution, selling and administrative expenses		879,671	843,967	802,669
Other operating expense (income), net		(6,091)	(6,365)	5,510
Inventory valuation adjustment		(12,000)	(7,300)	(17,000)
Operating (loss) income		53,012	57,809	175,309
Operating Segments | Patient Direct
Financial information by segment
Net revenue		2,680,112	2,552,572	2,057,078
Cost of goods sold		1,399,732	1,335,553	1,110,920
Distribution, selling and administrative expenses		1,030,120	969,592	752,152
Other operating expense (income), net		9,895	(564)	(258)
Goodwill impairment charge		(307,112)
Operating (loss) income		260,155	246,863	193,748
Segment Reconciling Items
Financial information by segment
Acquisition-related charges and intangible amortization		86,543	(101,037)	(126,972)
Exit and realignment charges, net		(110,162)	(99,127)	(6,897)
Goodwill impairment charge		(307,112)
Litigation and related charges		$ (17,119)
Inventory valuation adjustment				$ (92,275)
Operating (loss) income			104,508
Capital expenditures			207,892
Segment Reconciling Items | Products & Healthcare Services
Financial information by segment
Capital expenditures			29,361
Segment Reconciling Items | Patient Direct
Financial information by segment
Capital expenditures			$ 178,531